From Pilates to strength training and tennis, here’s the lowdown on how Hailey Bieber, Dua Lipa and more are keeping fit.

Sit with your upper back resting against a sturdy chair. Place your feet flat on the floor, knees bent. Lift one leg off the ...

Which exercise machine burns the most calories? The one you enjoy and will use the most. Here are our all-time favorite cardio machines we have tested at Live Science. When you purchase through links ...